Charles peterson



(.N-o Model.) Y b G'- PETERSON.

TOBACCO PIPE. NO- 519,135 Patented May 1, 1.894.

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. of this specification and represent what I i ings. The lower end of the stem is provided the mouth of the smoker is avoided and where- UNITE `CHARLES PETERSON, OF DUBLIN, IRELAND,`

TOBACCOPIPE.`

SPECIFICATION forming part of Letters Patent No. 519,135, dated May 1, 1894.

Application filed September 2, 1891.` Serial No. 404,495. (No model.) `PatentedinIlngland August 8,1890, No. 12,393,2.11d in France January 22,1891, No. 210,944.

.To @ZZ whom it may concern:

Be it known that I, CHARLES PETERSON, a subject of the Queen of Great Britain, residing in Dublin, Ireland, have invented a certain new and useful Improvement in Tobacco-Pipes, (which has been patented in Great Britain and Ireland under Letters Patent dated August 8,1890, No.12,393, and in France under patent dated January 22, 1891, No. :(210,944) of which the following is a specifica- This invention relates to tobacco pipes for smokers use and comprises certain constructions therein, as hereinafter set forth and claimed, whereby the return of saliva into by further the passageof tobacco dust, nicotine,and like objectionable matters from the pipe bowl into the stem is prevented.

The accompanying `drawings form a part consider the best means of carrying out the invention. i

Figure 1 is a vertical longitudinal sectional vlew of a tobacco pipe constructed in accordance with my invention.` Fig. 2 is a similar View showing the bowl and the stem separated or detached from each other.

Like numerals `of reference indicate like parts in both figures. y i

1 designates the bowl of my improved to-` bacco pipe,and 2 isthe stem of the same. The bowl is provided with the usual tobacco receptacle 3, and with the opening 4, for the reception of the stem. Theopening 4 is extended downwardly toward the lower end of the mouth or opening 3, so as to form a pocket or recess 5,the upper endof which is connected by a straight bore or channel 6, with the lower end of the vtobacco receptacle 3. The upper end of the opening 4receives the lower fend 7 of the' stem 2, which is shouldered, as shown at 8, said shoulder being tted to the bowl, as will be clearly seen in Fig. 2, so as to make a neat finish. The stem may be heldin the'bowl by friction, or it may if preferred, be `screwthreaded, to engage a corresponding screw thread formed in the opening 4 of the bowl. Such screw thread has `been indicated indotted lines as shown at 9 in Fig. 1 of the draw-.-

with a tubular extension 10, extending into the opening 4, and reaching past lthe outer end of said channelinto the upper end of the pocket 5. The latter is of such .dimensions that an annular space 11 shall be formed around the said tubular extension 10, as will beclearly seen in Fig. 1. 4The diameter of the bore 12V of the stem is considerably greater` at its lower than at its upper end. The bore at the mouth end of the stem is abruptly coned and contracted to its meeting with the outer surface of the said mouth end, as shown at 13, thus leaving a small suction hole bounded by the thin edge at the junction of such conical surface of the bore with the outer` surface of the mouth end. The saliva which has once passed the contraction, which it does as soon as it enters thestem, cannot by the suction be drawn back into the mouth of the smoker.

In operation the smoke will pass through the channel or passage 6 to the recess or pocket 5 of the bowl, being deflected into said pocket by reason of the tubular extension 10 at the lower end of the stem which extends past the upper end of the channel 6, andinto the pocket, as hereinbefore `set forth. Obnoxious matter such as nicotine, ashes, tolbacco dust, and the like, will be deposited in the recess or pocket 5 while the pure smoke will pass freely through vthe bore of the stem. The draft through the latter will be found to be free, cool and regular, owing to the greater diameter of the lower end of the bore. The extended passages through which the smoke is required to pass will also contribute toward making a cooland delightful smoke.

The stem, and. mouth-piece may be made round, oval or of any other desired shape.` It will be seen that the tubular extension 10 extending into the pocket 5, not only serves to deflect the nicotine and other obstructions into the said pocket as well as to conduct the saliva into the latter, but that it will also serve effectually to prevent any obnoxious matter from the said pocket to return into the stem, even if the `pipe be inverted; the i annular space around said iiange serving to receive the contents of the pocket 5 in case the pipe shouldbe tilted.

I have, in the foregoing described the pre? IOO ferred form of the invention. I desire, hoW- ever, to reserve the right to any modifications and alterations which may be resorted to Without departing from the spirit of my invention.

I claim as my invention- 1. A stem for a tobacco pipe having the bore at the mouth end abruptly coned and contracted to its meeting with the outer surface of said mouth end, thus leaving a small suction hole bounded by the thin edge at, thejunction of such conical surface of the bore with the outer surface of the mouth end, substantially as described. 

